Notes - Segment Information, Etc.
| Concept | 2023-09-01 to 2023-11-30 | 2023-09-01 to 2023-11-30 | 2023-09-01 to 2023-11-30 | 2023-09-01 to 2023-11-30 | 2023-09-01 to 2023-11-30 | 2023-09-01 to 2023-11-30 | 2023-09-01 to 2023-11-30 | 2022-09-01 to 2022-11-30 | 2022-09-01 to 2022-11-30 | 2022-09-01 to 2022-11-30 | 2022-09-01 to 2022-11-30 | 2022-09-01 to 2022-11-30 | 2022-09-01 to 2022-11-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | |||||||||||||
| Segment information | |||||||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | |||||||||||||
| Sales | |||||||||||||
| Revenues from external customers | 
                                                293,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                293,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                224,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                293,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                316,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                316,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                115,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                316,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |